Learn Finnish: Maailmanherruus on meidän, jos emme epäröi nyt. - World domination is ours if we don't hesitate now.

You would use älkäämme plus the verb stem and the -ko/-kö suffix. The stem of epäröidä is epäröi-, so it becomes Älkäämme epäröikö nyt. The original sentence uses the standard negative indicative (emme epäröi) because it states a condition with jos (if we don't hesitate), rather than making a command or suggestion.

How is the word maailmanherruus built?

It is a compound of maailman (the genitive of maailma, meaning 'world's') and herruus (domination/mastery). Herruus is formed by taking the noun herra (lord/master) and adding the suffix -uus, which creates abstract nouns similar to '-dom' or '-ship' in English.

Can the genitive pronoun meidän stand alone to mean 'ours'?

Yes. When a genitive pronoun like meidän (our) or minun (my) is used as a predicative with the verb olla (to be), it translates to 'ours' or 'mine'. It functions exactly like English in this case: on meidän translates directly to 'is ours'.

What type of verb is epäröidä, and how do we find its stem?